Questions tagged [obd]
An acronym; On Board Diagnostics.
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How do I disconnect my OBD port from my lower dashboard?
I am going to be checking my OBD port on my 2004 Subaru WRX for loose pins. The problem is that access to my OBD is uncomfortable at best (it's below knee level and pointed down). Even if I can ...
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CAN Signals on OBDII
What CAN messages & signals are freely accessible through OBD-II? Can manufacturer close certain signals or only propretary ones?
I know all CAN signals can be accessed but not interpreted ...
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OBD-II Mode and PIDs specifically used for Electric vehicles?
I am working on developing a vehicle CAN communications protocol being implemented in an electric vehicle. I was wondering if anyone knew if there is a standard MODE and PID for OBD-II messages ...
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OBD or CAN - what's mandatory (EU and US)
First of all, I've already tried to do my research and tried to get all the info I'm asking for myself (which obviously didn't work).
I want to know if CAN or OBD(-II) are in fact mandatory in the US ...
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1995 GM OBD transitional 1.5 scan tool [closed]
I have had a 1995 Pontiac SSEi for 2 years without a code reader but now want to buy one. From the previous discussions I have read, there seems to be no available and affordable scan tool.
Has anyone ...
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Catalyst Temperature
Please refer to Catalyst Temperature PIDs (mode 01 pids 3C, 3D, 3E, 3F) for the following questions - https://en.wikipedia.org/wiki/OBD-II_PIDs#Mode_01
Q1. Is there a thumb rule that the catalyst ...
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When connecting diagnostic PC to OBD port - What is the most detailed output file?
When the garage connecting the "official" manufacturer software to the OBD port in the car - What is the most detailed file that can be retrieved, containing all the raw data information?
Thanks,
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Calculate Intake Manifold Absolute Pressure from MAF Engine using OBD Data
I need to calculate Intake Manifold Absolute Pressure from OBD Data. I have Toyota Corolla GLI 2010 Model. This car has MAF engine which does not return Intake Manifold Absolute Pressure. Where'as I ...
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Less than specified bytes of data from OBD
0100 (https://en.wikipedia.org/wiki/OBD-II_PIDs#Mode_1_PID_00) should provide 4 bytes of data. But there has been cases, like Audi A4 2.0 TDI, where the data from 0100 was less than 4 bytes. So is the ...
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Toyota Avensis Verso 2002 (sold in Italy) CLM20L - which OBD version compatible?
I seem to have problems with nailing down the interface version of the OBD socket in my car.
Is it OBD, OBD2 or EOBD compatible? I know the differences between them in theory, but there is no solid ...
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OBD2 expert in ipad to bluetooth elm327 mini
Just bought OBD expert on grounds good to go in an ipad (version 9.3.5 13G36)
It just wont detect the adapter from my ipad. Adapter is fitted and red light on.
Am I wasting my time with an ipad and ...
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What is the difference between Toyota GTS and TIS software?
I've found two types of Toyota OEM software available.
One is the GTS ( Global Tech Stream ) software which is freely available from Toyota's EU site.
The other is the Toyota TIS ( Technical ...
- 15.7k
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OBD MIL commanded status and DTC stored
OBD-II Mode 01 PID 0 gives commanded MIL on (bit A7, see link) and Number of confirmed emissions-related DTCs (bit A6-A0, see link).
I did hit Mode 01 PID 01 on a few cars but got surprising results.
...
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Mode 01 PID 01 OBD-II
https://en.wikipedia.org/wiki/OBD-II_PIDs#Mode_1_PID_01
Mode 01 PID 01 - Monitor status since DTCs cleared.
In the 1st chart, B7 is 'Reserved' and must be 0. But for a few cars (like Skoda Rapid) ...
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Relation of VIN of a car with emission norms of a country it is sold
A VIN of a car determines the country of manufacture. So if a car has a VIN of Canada (CARB emission standard) and is sold in India (BS-IV emission standard), will the car comply with BS-IV standards?
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Emission performance of a vehicle using OBD
The California Air Resource Board uses OBD scanner for emission testing. (https://www.arb.ca.gov/msprog/obdprog/obdprog.htm)
In other places like India, 'tail pipe exhaust gas analyse' method is ...
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What is Honda HDS HIM?
I've been trying to find inexpensive PC based ways to connect to the older Honda's which use the 3-pin OBD connectors. I have run across a package being sold in various places called Honda HDS HIM.
I ...
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Duplicate OBD code - or reading it wrong?
'94 Grand Cherokee 5.2L, TBI. Has OBD, not OBD-II. The Check Engine Light came on after 10-15 mins running.
Checked error codes using the ignition key method, wondering if I'm reading the flashes ...
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SilLabs OBDscan can't connect to Alfa 147: latency too high!
I have an OBD Scan tools built around the Silicon Labs CP210x chipset, but I can't get it to connect to my car at all.
When I connect the scan tool to my laptop USB port I have a driver installed and ...
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Reading OBD Data from the Old Honda 2+3 Pin DLC
I've got a 2000 Honda Civic iSR with the old 2+3 pin Honda DLC which I'd like to read ECU data from.
According to the Evoscan website the pinout for the 3 pin dlc is ISO 9141 K-Line, B+ and ground ...
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Difference between FMS and OBD
What is the difference between FMS and OBD. Whether OBD is a standard or protocol.
Recently I am working on a GPS device to tap the CAN bus in order to integrate with our fleet management system. In ...
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Retrieving handbrake status light and reverse light from OBD II
I have a project to replace my car's instrument panel with a Android tablet. So I'm developing an application that communicates with an ELM327 device through bluetooth. I have managed to successfully ...
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2005 Impala OBD2 not working right
I have a 2005 Chevrolet Impala (Base trim, 3.4L) and I recently purchased a cheap OBD2 Bluetooth reader. Unfortunately, Torque (Android app) isn't able to read data from this transmitter when ...
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What does the OBD error code P0100 mean?
What does the OBD error code P0100 mean?
I have an engine misfire with the check engine light on in my Nissan N16 Supper Saloon -1300cc - 2000 model year. The engine started to produce less power.
An ...
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Auto determine the bluetooth device is OBD or not?
Current I am working on OBDII. While in bluetooth discovery to connect obd, How I determine which device is obd and which device is normal bluetooth device.Because I want auto connect my app with obd.
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Mode 02 - Freeze frame data use
I got some data on sending 0202 command (Mode $02, PID 02). It is the freeze frame data. I don't understand why does anyone need the data? Do anyone (including mechanics) ever open Freeze frame data? ...
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Horsepower at wheels calculation
I have used Torque Pro App for sometime in my Hyundai i10 Era (2011 model) and it gives me Horsepower at wheels. But the values seems to be much less.
To find out the problem, I logged the car OBD ...
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Fault code decoding
I tried getting mode 03 (fault code) for Volkswagen Polo and Toyota Innova. I am unable to find how to decode it. Can someone please help me decode it (the method to decode the hex response)
Volvo: ...
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CAN data for Mahindra
I bought a new Mahindra Scorpio S10 and have been trying to read the CAN bus using ELM 327 Bluetooth OBD and Putty.
Configurations in Putty: Baud Rate 9600 (tried 115200 also), Data bits: 10, Stop ...
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